Rosemount 3051SFC_A User Manual

Reference Manual
00809-0100-4809, Rev DA
Appendix A: Specifications and Reference Data
September 2015
133
Specifications and Reference Data
FOUNDATION Fieldbus function block execution times
F
OUNDATION Fieldbus parameters
Standard function blocks
Resource block
 Contains hardware, electronics, and diagnostic
information.
Transducer block
 Contains actual sensor measurement data including
the sensor diagnostics and the ability to trim the
pressure sensor or recall factory defaults.
LCD block
 Configures the local display.
2 Analog input blocks
 Processes the measurements for input into other
function blocks. The output value is in engineering
units or custom and contains a status indicating
measurement quality.
PID block
 Contains all logic to perform PID control in the field
including cascade and feedforward.
Backup Link Active Scheduler (LAS)
The transmitter can function as a Link Active Scheduler if
the current link master device fails or is removed from the
segment.
Advanced control function block suite
(option code A01)
Input selector block
 Selects between inputs and generates an output using
specific selection strategies such as minimum,
maximum, midpoint, average, or first “good.”
Arithmetic block
 Provides pre-defined application-based equations
including flow with partial density compensation,
electronic remote seals, hydrostatic tank gauging,
ratio control, and others.
Signal characterizer block
 Characterizes or approximates any function that
defines an input/output relationship by configuring up
to twenty X, Y coordinates. The block interpolates an
output value for a given input value using the curve
defined by the configured coordinates.
Integrator block
 Compares the integrated or accumulated value from
one or two variables to pre-trip and trip limits and
generates discrete output signals when the limits are
reached. This block is useful for calculating total flow,
total mass, or volume over time.
F
OUNDATION Fieldbus diagnostics suite
(option code D01)
The 3051C F
OUNDATION Fieldbus Diagnostics provide
Abnormal Situation Prevention (ASP) indication. The
integral statistical process monitoring (SPM) technology
calculates the mean and standard deviation of the process
variable 22 times per second. The 3051C ASP algorithm
uses these values and highly flexible configuration options
for customization to many user-defined or application
specific abnormal situations. The detection of plugged
impulse lines is the first available predefined application.
Low power (output code M)
Output
Three wire 1–5 Vdc or 0.8–3.2 Vdc (option Code C2)
user-selectable output. Also user selectable for linear or
square root output configuration. Digital process variable
superimposed on voltage signal, available to any host
conforming to the HART protocol. Low-power transmitter
operates on 6–12 Vdc with no load.
Power consumption
3.0 mA, 18–36 mW
Block Execution time
Resource N/A
Trans ducer N/A
LCD Block N/A
Analog Input 1, 2 30 milliseconds
PID 45 milliseconds
Input Selector 30 milliseconds
Arithmetic 35 milliseconds
Signal Characterizer 40 milliseconds
Integrator 35 milliseconds
Schedule Entries 7 (max.)
Links 20 (max.)
Virtual Communications Relationships
(VCR)
12 (max.)

Rosemount 3051SFC_A Specifications

General

Brand	Rosemount
Model	3051SFC_A
Category	Measuring Instruments
Language	English